Survey Identifier: NAV4125
Format Acronym: ARO88
Data Center File Number: 0550-036
Parameters Surveyed Code: FXD
File Creation Date (yyyymmdd): 19940506
Source Institution: US Naval Oceanographic Office
Country: INTERNATIONAL
Platform Name: RP-3D ORION
Platform Type Code: 3
Platform Type: PLANE
Chief Scientists: Virgil R. Bettencourt
Project: Project Magnet: Project C32-951: Flight 4125 ~ 2,429 Nautical Miles
Survey Departure Date (yyyymmdd): 19881021
Survey Arrival Date (yyyymmdd): 19881021
Flight Line Spacings: Single Flight Line, Variable Directions
Magnetometers Used: Vector and Scalar Magnetometers
Aircraft Altitude: 25,000 FT AG
Aircraft Velocity: 240 Knots
Sampling Rate: 2
Sensor Tow Distance: STINGER
Total Observations: 13302
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -27
Bottommost Latitude: -54
Leftmost Longitude: -110
Rightmost Longitude: -070
Archive NGDC Tape Letter: W
Additional Documentation: To remove high frequency noise, a low pass filter has been applied to all the, flight line data above 15,000 feet. Data at the beginning and end of a flight, are noisy because the aircraft is maneuvering during it's climb or descent to, or from survey altitude which is approximately 25,000 feet. Data below 15,000, feet or climb and descent data are not smoothed.
Number of Data Records: 13302
Datafile Header Info: PJCT=C32-951 FLGT= 4125 ,MTH= 10,DAY= 21, YR=1988,JDY= 295 -TO- 295,RCD= 13304,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -109.6903
Latitude: -53.0023
Mag Total Intensity Calc nT: 32910
Time Gmt Sec: 15587.2410
Mag East Component Obs nT: 21056
Mag North Component Obs nT: 5679
Mag Horizontal Intensity Calc nT: 21851
Mag Vertical Intensity Obs nT: -27868
Mag Declination Calc Deg: 13.3546
Mag Inclination Calc Deg: -49.8169
Mag Total Intensity Obs nT: 32912
Alt Barometric Ft: 0
Min/Max Data Record:
Longitude: -70.8554
Latitude: -27.0615
Mag Total Intensity Calc nT: 36494
Time Gmt Sec: 43079.6968
Mag East Component Obs nT: 26710
Mag North Component Obs nT: 9604
Mag Horizontal Intensity Calc nT: 27548
Mag Vertical Intensity Obs nT: -19134
Mag Declination Calc Deg: 24.1515
Mag Inclination Calc Deg: -35.3325
Mag Total Intensity Obs nT: 36495
Alt Barometric Ft: 26000